Multiple blade razor



April 25, 1950 F. HERRMANN MULTIPLE BLADE RAZOR Filed Jan. 16, 1947 Patented Apr. 25, 1950 NITED STATES PATENT OFFICE MULTIPLE BLADE RAZOR Fred Herrmann, Harrington Park, N. J.

Application January 16, 1947, Serial No. 722,318

2 Claims. (01. 30-50) This invention relates to improvements in razors and particularly to razors of the safety type in which a relatively thin blade is carried by a blade-supporting member.

When using the safety razors now being marketed it is appreciated that while shaving, the razor blade becomes blunt at least at some portions of its cutting edge after a comparatively short period of usage, so that it has to be resharpened or exchanged. Moreover, it requires a certain amount of skill and training to keep the razor--while shaving-in the most advantageous angular position relative to the various portions of the face and neck so as to obtain always the highest possible cutting effect and to prevent scratching or injury of the skin.

Therefore, one object of the present invention is the provision of a device of the character described which I call a double duty safety razor that has two razor blades which are being held by two razor blade holding units, one above the other, and which are arranged in such a manner that the upper blade holding unit is laterally shiftable relative to the lower unit. This not only allows the use of the cutting edges at both sides of each razor blade, but also facilitates the keeping of the razor in the proper angular position relative to the surface of the various face portions due to the fact that the lower blade protrudes laterally over the upper blade so that said proper angular position can be obtained simply by resting the cutting edges which are at one side of each blade against the face.

Another object of the present invention is the provision of a device of the character described which is light in weight, handy in use, and simple in construction so that it can be manufactured and sold at a very reasonable price, but which is sturdy, durable, and well adapted to withstand the rough usage to which devices of this type are freuuently subjected.

With the foregoing and other objects in view which will appear as the description proceeds, the invention consists of certain novel details of construction and combinations of parts hereinafter more fully described and pointed out in the claims, is being understood that changes may be made in the construction and arrangement of parts without departing from the spirit of the invention as claimed.

I In the accompanying drawings the preferred forms of the invention have been shown.

In said drawings:

Figure 1 is a side elevation of a preferred embodiment of my invention:

Figure 2 is a front elevation of the same;

Figure 3 is a fractional vertical sectional view on the line 3-3 of Figure 2;

Figure 4 is a bottom plan view of a detail;

Figure 5 is a sectional View on the line 5-5 of Figure 4; and

Figure 6 is an exploded side elevation.

Similar reference characters refer to similar parts throughout the several views.

In the drawing the numeral l denotes a handle which may be of any desired shape or design, having a threaded axial bore 3 in its upper section 2, and forming no part of my present invention.

A lower blade holding unit, comprising a lower guard plate 5 and a lower retainer cap 5, rests upon the upper extremity of said handle. An upper blade holding unit, comprising an. upper guard plate 1 and an upper retainer cap 8, is laterally shifta'ble upon said lower blade holding unit. Threaded bolts I ll, whose heads 9 preferably are knurled as shown, are extended through perforations in the plate 8 and through a razor blade l6 and are screwed into threaded apertures l3 in the plate I. The center portion of the plate 1 is provided with a countersunk slot I along the shorter center line of the plate I, and the head l2 of a screw 4 normally rests in the countersunk upper portion of the slot I I while the shaft of the screw 4 is extended through centrally located, registering apertures in the parts 5 and 6 as well as through the lower razor blade 11. 1 The lower portion of the screw 4 is screwed into the bore 3 of the handle I.

The lower retainer cap 6 is provided with downardly extending pins M which register with perforations I5 that are located at both sides of a central perforation.

The razor without razor blades is shown in the exploded view of Figure 6, while the parts: of the razor and the razor blades ready for use can be seen in Figure 3.

The lower unit comprising the parts 5, 6 and I1 differs from an ordinary, one-blade razor only in so far as the shaft of the screw 4 is extended through the part 6 as well as through the part 5. Since the upper portion of the screw 4 extends through the slot II, and its head I! engages the countersunk portion of the former, said upper blade holding unit as well as the upper blade I8 can be shifted laterally relative to said lower unit as illustrated in Figure 3. In this case the left hand cutting edges of the razor blades 16 and I! as well as the left hand edges of the parts 5, 6, I and 8 form an inclined surface which-according to the arrangement and size of the slot I I -facilitates the holding and keeping of the cutting edges in the proper angular position relative to the face, as previously referred to. In order to switch from the left-hand cutting edges of the blades l6 and I! to the right-hand cutting edges, it is not necessary to take the razor apart or to manipulate the bolts 10, but only the handle 1 has to be loosened slightly for allowing a pushing of the upper unit (parts ,1, 8 and I5) into a position which is opposite tothat shown in Figure 3. The bolts l0 have to be manipulated only'for the purpose of taking the blade I6 out or said upper unit for cleaning purposes or the like.

Since certain changes may be inadeinithei above article and diiferent embodiments of the invention could be made withoutdeparting from the scope thereof, it is intendedthat all II-latter contained in the above description or shown in the accompanying drawing shall be interpreted as illustrative and not in a limiting sense.

It is alsoeto beunderstood that the following claims are lintended to coverall the genericand specific features of the'inventionherein described, and all statements 'of the scope or the invention which matter oflanguage might-be said to :fall therebetween.

Having thus 'iully-des'cribd-iny said invention, what I claim as inewaandadesire torsecure by Letters Patent is:

1. The cornbination in a safety razor, of a-lower bladeiholding unit-comprising alowerguardiplate having'a central -perforationand: laterally located periorations and a lower, retainer cap having a central perforationand-beingiprovided with pins which register withfthe laterally :located: perforae tions of said lower guard-plate, with -an upperblade holdingunit comprising an upper guard plate having; a countersunk :slotialong the 5 center whose shaft is extended through, said slot and through the centraL-perforatienstot-said lower bladeholding unit an dds extended beyond the lower side of said-lower *guard -plate-ior engag ing theinternal-ly threadedbore of arazor handle,

said ,lower :guard- --plate; -and= said =lo'v ver we retainer capabeing adapted for having interposed there between a-=first razor blade through which said pins are extended, and said upper guard plate and said upper retainer cap being adapted for having interposed therebetween a second razor blade through which threaded bolts are extended, said bolts having knurled heads which rest against the top surface ofrsaid upper retainer cap while the shafts of said bolts are extended through said upper retainer cap and said last mentioned razor blade and engage the threaded holes in' said upper guard-platei V 2. A safety razor comprising a lower guard plate having a central perforation and laterally located perforations, a lower retainer cap having a central perforation and being provided with pins which register with the laterally located perforations ot said lower guard plate, an upper uard plate having amountersunk slot along the center portion of its "shorter center line and havin'g threaded holes at both sides of said slot, an

upper retainer cap having perforations which register I with the: threaded: holesvimsaid upper guard plate, ahandle having ;an .--axial,threaded core in-its upper portion, ascreww-hosehead-islaterally slidable initheslot ofasaid upper guard:

plateand whose shaft-is ;-extended through; said slot-and through the central perforations; of said 1 of' said bolts are 3 extended through said-upper retainer cap and engage the threaded holes-in; said" upper; -guardg plateg said "lower guard;- plate and; said lower retainer cap, beingadapted. for;

having interposedtherebetween -a first; razor;- blade through wh h said pinsare extended; and

said upper guar-d {plate-and: said upper retainercapbeing-radapted for having interposed therebe-j,

tween 21,- second" razor blade, through which" the e shaits-of said threaded bolts-are extended. 7 FRED H MA N,

aeraaescescnmi The following-:referenoes are :of record'inthefileof this patent;

UNITED sTA'rEs; PATENTS? Number Name. Date 1,920,'7 1'1 Pelizzola -e 1,934,422 Gray Nova-'7, 1933': 

